APA (7th ed.) Citation

Gerhardie, W., & Mateo, E. (1991). Futilidad. Versal.

Chicago Style (17th ed.) Citation

Gerhardie, William, and Elsa Mateo. Futilidad. Barcelona: Versal, 1991.

MLA (9th ed.) Citation

Gerhardie, William, and Elsa Mateo. Futilidad. Versal, 1991.

Warning: These citations may not always be 100% accurate.